#region SharpContent License
// Sharp Content Portal - http://www.SharpContentPortal.com
// Copyright (c) 2002-2006
// by SharpContent Corporation
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated 
// documentation files (the "Software"), to deal in the Software without restriction, including without limitation 
// the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and 
// to permit persons to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or substantial portions 
// of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED 
// TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF 
// CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
// DEALINGS IN THE SOFTWARE.
#endregion
using System;
using System.Web;
using SharpContent.Entities.Portals;

namespace SharpContent.Entities.Users
{
    public class UserTime
    {
        public DateTime ConvertToUserTime( DateTime dt, double ClientTimeZone )
        {
            // Obtain PortalSettings from Current Context
            PortalSettings _portalSettings = PortalController.GetCurrentPortalSettings();
            return dt.AddMinutes( FromClientToServerFactor( ClientTimeZone, _portalSettings.TimeZoneOffset ) );
        }

        public DateTime ConvertToServerTime( DateTime dt, double ClientTimeZone )
        {
            // Obtain PortalSettings from Current Context
            PortalSettings _portalSettings = PortalController.GetCurrentPortalSettings();
            return dt.AddMinutes( FromServerToClientFactor( ClientTimeZone, _portalSettings.TimeZoneOffset ) );
        }

        public DateTime CurrentUserTime
        {
            get
            {
                HttpContext context = HttpContext.Current;
                if( !( context.Request.IsAuthenticated ) )
                {
                    return DateTime.Now;
                }
                else
                {
                    return DateTime.Now.AddMinutes( ClientToServerTimeZoneFactor );
                }
            }
        }

        public double ClientToServerTimeZoneFactor
        {
            get
            {
                // Obtain PortalSettings from Current Context
                PortalSettings _portalSettings = PortalController.GetCurrentPortalSettings();
                UserInfo objUserInfo = UserController.GetCurrentUserInfo();
                return FromClientToServerFactor( objUserInfo.Profile.TimeZone, _portalSettings.TimeZoneOffset );
            }
        }

        public double ServerToClientTimeZoneFactor
        {
            get
            {
                UserInfo objUserInfo = UserController.GetCurrentUserInfo();
                // Obtain PortalSettings from Current Context
                PortalSettings _portalSettings = PortalController.GetCurrentPortalSettings();
                return FromServerToClientFactor( objUserInfo.Profile.TimeZone, _portalSettings.TimeZoneOffset );
            }
        }

        private double FromClientToServerFactor( double Client, double Server )
        {
            return Client - Server;
        }

        private double FromServerToClientFactor( double Client, double Server )
        {
            return Server - Client;
        }
    }
}